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The error code 20131 on a Kobelco SK135SR excavator indicates an issue with the throttle motor control system. Here are some steps you can take to troubleshoot the problem:
Restart the Excavator: Turn off the excavator and then restart it to see if the error code clears. Sometimes, the error code may be triggered by a temporary glitch or electrical issue. Restarting the machine can reset the system and resolve the error.
Check Wiring Connections: Inspect the wiring connections related to the throttle motor control system. Look for any loose or disconnected wires, damaged connectors, or corrosion. Ensure that all connections are secure and properly seated. If you find any issues, repair or replace the wiring as necessary.
Throttle Motor Inspection: The throttle motor is responsible for controlling the engine's speed. Check the throttle motor for any signs of damage or malfunction. Look for loose components, excessive wear, or electrical issues. If the throttle motor appears damaged, it may need to be repaired or replaced.
Throttle Position Sensor (TPS): The throttle position sensor measures the position of the throttle and communicates it to the engine control unit. Inspect the TPS for any damage or misalignment. Ensure that it is properly connected and functioning correctly. If there are any issues with the TPS, it may need to be replaced.
Consult the User Manual: Consult the user manual or service manual specific to your Kobelco SK135SR excavator for further guidance. The manual may provide specific diagnostic procedures or additional troubleshooting steps for the error code 20131.
If the issue persists after attempting these steps, it is recommended to contact a qualified technician or the Kobelco customer support team for further assistance. They will have the specialized knowledge and diagnostic tools to accurately diagnose and resolve the issue with the throttle motor control system.
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